The main reason for the existence of climatic regions on our planet is the tilting of the Earths vertical axes and the elliptic rotation of the Earth around the sun. This causes the amount of incoming solar radiation to vary throughout a year. As a result we have four seasons each lasting around 90 days.
There has been much ado about CO2 levels, the amount of it, who's responsible and its influence on our climate (if any).
The false claim: "Humans caused 100% of the past century's global warming" is totally false as is explained in the article below.
Excerpt from the document:
One of the problems with this climate change issues is that it is so vaguely defined, in very very unscientific terminology. Climate alarmists will claim that man is impacting the climate, and immediately demand taxpayer funding every one of their pet projects that they can tie to climate change.
To continue reading see the pdf below: